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指纹图像预处理和特征提取
引用本文:刘灵丽,李丽娟.指纹图像预处理和特征提取[J].计算机工程,2006,32(16):190-192.
作者姓名:刘灵丽  李丽娟
作者单位:1. 湖南大学计算机与通信学院,长沙,410082;湘南学院计算机系,郴州,423000
2. 湖南大学计算机与通信学院,长沙,410082
基金项目:中国科学院资助项目;教育部科学技术研究项目;湖南省中青年基金
摘    要:根据指纹的固有规律,提出了一套较完整的指纹图像预处理和特征提取算法。改进了指纹脊线频率求取算法和二值图像去孔噪声算法,并提出了一种新的滤除指纹伪特征点的方法。通过对上百幅不同质量的指纹图像进行测试,获得了较好的效果。

关 键 词:指纹  预处理  特征提取
文章编号:1000-3428(2006)16-0190-03
收稿时间:09 14 2005 12:00AM
修稿时间:2005-09-14

Preprocessing and Minutiae Extraction of Fingerprint Image
LIU Lingli,LI Lijuan.Preprocessing and Minutiae Extraction of Fingerprint Image[J].Computer Engineering,2006,32(16):190-192.
Authors:LIU Lingli  LI Lijuan
Affiliation:1. College of Computer and Communication, Huaan University, Changsha 410082; 2. Department of Computer, Xiangnan University, Chenzhou 423000
Abstract:A set algorithm for preprocessing and minutiae extraction of fingerprint image is proposed in this paper. It is based on the analysis of the inherent feature of fingerprint. The method to get ridge frequency and the method to eliminate holes of binary image are proposed. Besides, a new approach to eliminate false minutiae of thinned fingerprint image is presented. These proposed algorithms have been widely tested and checked for hundreds of fingerprint images and excellent results are obtained.
Keywords:Fingerprint  Pxeprocessing  Minutiae extraction
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